STA326, STA328 and STA329 speaker amplifier

modulename: snd-soc-sta32x.ko

configname: CONFIG_SND_SOC_STA32X

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>CODEC drivers
└─>STA326, STA328 and STA329 speaker amplifier
In linux kernel since version 3.1 (release Date: 2011-10-24)  
source code:
sound/soc//codecs/